1 files changed, 68 insertions, 0 deletions
diff --git a/externals/xbyak/sample/ccmp.cpp b/externals/xbyak/sample/ccmp.cpp
new file mode 100644
index 00000000..ff75796b
--- /dev/null
+++ b/externals/xbyak/sample/ccmp.cpp
@@ -0,0 +1,68 @@
+/*
+	An example of ccmp
+	> g++ ccmp.cpp -I ../xbyak
+	> sde -future -- ./a.out
+*/
+#include <stdio.h>
+#include <xbyak/xbyak.h>
+#include <xbyak/xbyak_util.h>
+
+using namespace Xbyak;
+
+struct Code1 : Xbyak::CodeGenerator {
+	Code1()
+	{
+		Xbyak::util::StackFrame sf(this, 2);
+		const auto& p1 = sf.p[0];
+		const auto& p2 = sf.p[1];
+		int dfv = 0;
+		cmp(p1, 3);
+		ctesta(p2, 1, dfv); // eflags = (p1 > 3) ? ((p2 & 1) == 0) : dfv;
+		setz(al|T_zu);
+	}
+};
+
+struct Code2 : Xbyak::CodeGenerator {
+	Code2()
+	{
+		Xbyak::util::StackFrame sf(this, 3);
+		const auto& p1 = sf.p[0];
+		const auto& p2 = sf.p[1];
+		const auto& p3 = sf.p[2];
+		int dfv = 0;
+		cmp(p1, 1);
+		ccmpe(p2, 2, dfv); // eflags = p1==1 ? p2==2 : dfv;
+		ccmpe(p3, 3, dfv); // eflags = (p1==1 && p2==2) ? p3==3 : dfv;
+		setz(al|T_zu); // p1==1 && p2==2 && p3==3
+	}
+};
+
+
+int main()
+	try
+{
+	{
+		puts("(p1 > 3) && ((p2 & 1) == 0)");
+		Code1 c;
+		auto f = c.getCode<int (*)(int, int)>();
+		for (int p1 = 2; p1 < 5; p1++) {
+			for (int p2 = 0; p2 < 3; p2++) {
+				printf("p1=%d p2=%d ret=%d (%d)\n", p1, p2, f(p1, p2), p1 > 3 && ((p2&1) == 0));
+			}
+		}
+	}
+	{
+		puts("p1 == 1 && p2 == 2 && p3 == 3");
+		Code2 c;
+		auto f = c.getCode<int (*)(int, int, int)>();
+		for (int p1 = 0; p1 < 3; p1++) {
+			for (int p2 = 1; p2 < 4; p2++) {
+				for (int p3 = 2; p3 < 5; p3++) {
+					printf("p1=%d p2=%d p3=%d ret=%d (%d)\n", p1, p2, p3, f(p1, p2, p3), p1==1 && p2==2 && p3==3);
+				}
+			}
+		}
+	}
+} catch (std::exception& e) {
+	printf("ERR %s\n", e.what());
+}